/* 全局样式 */
body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

header {
  background-color: #333;
  color: #fff;
  padding: 1rem;
}

nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
}

nav ul li {
  margin-right: 1rem;
}

nav ul li a {
  color: #fff;
  text-decoration: none;
}

section {
  padding: 2rem;
}

h1, h2, h3 {
  color: #333;
}

/* 主页样式 */
#home {
  text-align: center;
  background-color: #f4f4f4;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  background-color: #333;
  color: #fff;
  text-decoration: none;
  margin-top: 1rem;
}

.btn:hover {
  background-color: #555;
}

/* 游戏部分样式 */
.game {
  margin-bottom: 2rem;
}

.game img {
  max-width: 100%;
  height: auto;
}

/* 表单样式 */
form input,
form textarea,
form button {
  display: block;
  width: 100%;
  margin-bottom: 1rem;
  padding: 0.5rem;
}

form button {
  background-color: #333;
  color: #fff;
  border: none;
}

form button:hover {
  background-color: #555;
}